March's easy-to-love third Eternity Springs contemporary (after Hummingbird Lake) introduces empty-nesters Ali and Mac Timberlake, who must come to terms with the romantic game-changers of career success and grown children. March's flair for pleasingly imperfect characters and the stomach-tightening scenes of marital discord easily pull readers into the richly imagined world of Eternity Springs, Colo., where Ali decamps for a trial separation. With judge Mac's grueling docket keeping him back in Denver, Ali's adopted community begins to take center stage in her life. As the two try to reconcile, sensual scenes build on their years of experience and affection to create both heat and humor ("Mac collapsed on top of Ali... and thanked the Good Lord that he hadn't had a heart attack"). Readers will be breathless as Eternity Springs works its romantic magic once again. (May)